MAB Robotics
MA-p
Introducing the MA-p Planetary Actuator, a robotic actuator that utilizes a brushless motor, a planetary gear reducer and the MD series controller with an integrated absolute encoder. The actuator can be equipped with an additional absolute output encoder, an electromagnetic brake and can be integrated with an IP66 sealed enclosure. Depending on the chosen reduction ratio, the actuator can achieve excellent dynamics, good backdrivability and high torque density in a quasi-direct drive setup with small reduction ratios. Alternatively, for even higher torque density, additional reduction stages of the planetary system can be utilized. The downside of such a system is the backlash inherent in geared systems, which limits motion accuracy. However, this characteristic makes the actuator an excellent option for many mobile robotics applications where high torque density, good dynamics, and cost-effectiveness are essential.
High torque density
Cost-effective solution
Good backdrivability
Great dynamics
Good torque control and estimation
Backlash
Example applications
Robotic manipulators
A planetary reducer-based actuator is ideal for robotic manipulators due to its high torque density and compact design. Its smooth, efficient operation ensures reliable performance, while its robust construction handles repetitive stresses. With great backdrivability and precise torque control, it is an optimal choice even for collaborative robots (cobots).
Exoskeletons
A planetary reducer is an excellent choice for exoskeletons due to its high torque density and backdrivability, which provide powerful yet unobtrusive assistance to the wearer’s movements. Its efficiency ensures optimal battery use, while the robust design withstands repetitive stresses. Precise torque control contributes to accurate natural movements, enhancing the exoskeleton’s performance and comfort. Additionally, its cost-efficiency supports effective scaling of the project.
Wheeled robots
A planetary reducer is perfect for wheeled mobile platforms due to its high torque output and compact design. Its high energy efficiency ensures extended battery life, while the reliable planetary gear system contributes to a longer lifespan. Additionally, the planetary actuator is a very cost-effective solution.
Legged robots
A planetary actuator is ideal for legged robots (humanoids or quadrupeds) as it offers exceptional dynamics essential for natural movement, complex gaits and agility. The durability of quasi-direct drive actuators makes them well-suited for the demanding nature of legged robots, where resistance to repetitive loads during walk is necessary. The high torque density and precise torque control allows them to be used even in the most demanding joints of biped robots.
